bottomnavigationview

I was really happy when BottomNavigationView was released one week ago but I am facing some problems which makes me unable to solve it, like to see a shadow over the BottomNavigationView, on the same way as Google Photos Android App shows us: If we tap on an Google Photos menu item, we can see a ripple effect which is tinted blue like the icon and text color (when selected). Implementing the solution provided by Google only is displayed a gray ripple effect color, and worse, it is not displayed when we change the background color of the bottomnavigationview ( design:itemBackground="..." ).

I'm implementing BottomNavigationView for navigation in an Android app. I am using Fragments to set the content for each tab. I know how to set up one fragment for each tab and then switch fragments when a tab is clicked. But how can I have a separate back stack for each tab? Here is the code to set up one fragment: Fragment selectedFragment = ItemsFragment.newInstance(); FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); transaction.replace(R.id.content, selectedFragment); transaction.commit(); For an example, Fragment A and B would be under Tab 1 and Fragment C

I have implemented BottomNavigationView which is available from the new support library 25.0.0. Here is my code for that <android.support.design.widget.BottomNavigationView android:id="@+id/bottom_navigation" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" app:itemBackground="@color/colorPrimary" app:itemIconTint="@drawable/text" app:itemTextColor="@drawable/text" app:menu="@menu/bottom_navigation_main" /> And text.xml drawable <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res

I have implemented BottomNavigationView and have no idea how to set selection index or MenuItem id (in my case, middle item should be selected by default). I'm afraid there's no such possibility for now as far as it's too raw yet, but anyways any help will be appreciated. Thanks! Set the selected menu item ID using setSelectedItemId : bottomNavigationView.setSelectedItemId(R.id.item_id); This method started being available from Android Support Library 25.3.0. The only solution that worked for me is: View view = bottomNavigationView.findViewById(R.id.menu_action_dashboard); view.performClick();